* {
    margin: 0;
    padding: 0;
}

.pox {
    width: 450px;
    height: 1200px;
}



.pox1 {
    width: 500px;
    height: 600px;
    background-color: aqua;
}

.pox2 {
    width: 500px;
    height: 600px;
    background-color: red;
}

.pox3 {
    width: 500px;
    height: 600px;
    background-color: yellow;
}
